/in/foo.cc: In function 'void Rot(int)':
/in/foo.cc:52:1: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
 if(!Isroot(p))tree[g].s[t2]=v;tree[ch].F=p;
 ^~
/in/foo.cc:52:31: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
 if(!Isroot(p))tree[g].s[t2]=v;tree[ch].F=p;
                               ^~~~